Bring the power of today's railroading to your HO layout with the WalthersMainline General Electric Evolution series diesels. 
 
Introduced in 2003 to comply with tougher emission standards, and more popularly known among railfans and modelers as GEVOs, these big engines have quickly become one of the most popular locos worldwide. Designated as the ES44 (Evolution Series, 4,400 horsepower), prototype variations in North American service include locos with DC or AC traction motors and buyers have also specified center idler axles, as well as high adhesion or steerable trucks. 
 
WalthersMainline GEVOs feature: 

• Limited edition - one time run of these roadnumbers!
• Model today's railroading at WalthersMainline prices
• The most popular prototype diesel in North America
• Thousands in service from 2003 to the present
• Available with ESU Sound for DCC and DC layouts
• 21-pin DCC plug
• Correct profile radiator grilles and roof-top walkway surface details
• 2- or 4-vent dynamic brake vent as appropriate
• Easily handles 18" radius curves (22" or larger recommended)
• Six powered axles per unit
• LED Lighting includes:
  • Correct headlight per prototype
  • Working front ditch lights
  • Three truck styles to match prototypes:
    • Standard high-adhesion
    • Steerable
    • C4 A1A center idler axle
    • Fully assembled
    • Same powerful drive as WalthersProto(R) locos featuring:
      • Five-pole skew-wound motor
      • 14 to 1 gear ratio
      • Helical-cut gears for quiet operation and easy multiple unit operation
      • All-wheel drive and electrical pickup
      • Dual machined brass flywheels
      • Heavy die cast metal chassis
      • Constant and directional lights
      • Add grab irons to your model with the GE ES44 Evolution Series Diesel Detail Kit (910-250, sold separately)
      • RP-25 metal wheels
      • Proto MAX metal knuckle couplers